git: enable PROPERTIES=live

This backports Gentoo changes to allow these eclasses to access the
network in src_unpack.

BUG=chromium:1026470
TEST=`emerge-betty midis` works again

Change-Id: I5f6361ff76cd5adda5b122bcaf8368b6243b034b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/1925711
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
3 files changed
tree: b01fface82cfee0180b40c49f33fa5356d76d3cd
  1. eclass/
  2. metadata/
  3. profiles/
  4. OWNERS
  5. PRESUBMIT.cfg